Neutrophil Segment Count in Whole Blood (Qualitative)
This test checks the presence or absence of neutrophils, a type of white blood cell, in your blood sample. Neutrophils help fight infections.
["Determines if your blood contains abnormal neutrophil levels that may signal infection or other health concerns."]
Key facts at a glance
- LOINC
- 767-4
- Short code
- Neuts Hyperseg NFr Bld Manual
- Synonyms
- Neuts Hyperseg NFr Bld Manual
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Ref low
- 0.4
- Ref high
- 4
- Critical range
- 0.1 N/A – 20 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- manual-count
- CPT
- 84443
- SNOMED
- 301343003
- Specimen volume
- 3 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms like frequent infections, unexplained fever, or signs of inflammation. It could also be used to monitor conditions affecting white blood cells, such as certain cancers or immune disorders.
What to Expect Before the Test
No special preparation is needed. You’ll have a small needle inserted into your arm or vein to draw blood. This is usually done in a clinic or lab setting. If you’re on blood-thinning medication, let your provider know before the test.
What the Test Results Mean
Results are qualitative (yes/no) rather than numeric. A positive result indicates neutrophils are present in your blood, which is normal. A negative result might suggest an absence of neutrophils, which could be linked to conditions like severe neutropenia or certain infections.
Common Conditions Monitored or Diagnosed
This test helps diagnose or monitor conditions such as neutropenia (low neutrophil count), infections, autoimmune diseases, or blood disorders. It can also guide treatment decisions for patients with chronic illnesses.
Reference range
Adult: 0.4-4.0 mIU/LN/A
Take your thyroid medication after the blood draw if applicable. No fasting required.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Neutrophils are the body’s first responders to infections. Low neutrophil counts can increase the risk of severe infections, while abnormal neutrophil presence might indicate inflammation or other immune system issues. Your provider will use these results alongside other tests and symptoms to make a diagnosis.
Short name
Neutrophil Qualitative Blood Test
Frequently asked questions
What does a positive result mean for my health?
Can I eat or drink anything before this test?
How long will it take to get my results?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy